Wireless control system.



COMPARE. WIRELESS CONTROL SYSTEM.

APPLICATION FILED MAR. 15. l9l6. 1,200,412. Patented 001;. 3,1916.

2 SHEETS-SHEET I -M. COMPA RE. WIRELESS CONTROL SYSTEM.

APPLICATION F ILED MAR. 15. I916.

Patented Oct. 3, 1916.

2 SHEETS-SHEET 2 llllllllllllllll llllllllllllllll MANRICO COMPARE, OF LEGHORN, ITALY.

WIRELESS CONTROL SYSTEM.

Specification of Letters Patent.

Patented Oct. 3, 1916.

Application filed March 15, 1916. Serial No. 84,390.

To all whom it may concern:

Be it known that I, MANRIco COMPARE, a subject of the King of Italy, residing at Via della Banca, Leghorn, Italy, but at present of 48 Blenheim Crescent, Notting Hill, London, England, have invented new and useful Improvements in or Relating to \Vireless Control Systems, of which the following is a specification.

This invention has for its object improvements in or relating to wireless control systems which may be used for initiating or controlling any operation or series of op-. erations which it is desired to initiate or control from a distance by radiant energy such for instance as Hertzian waves or other like or similar means; and the invention comprises the arrangement and use in combination of a plurality of vibrators or oscillators each one of which is of different frequency and each of which is turn is capable of being set motion by radiant energy as aforesaid.

Accordin to this invention I may use a plurality of such oscillators or vibrators so arranged that the radiant energy initially affects only one of such oscillators or vibrators and when this one has attained a certain amplitude of vibration or oscillation another of the said oscillators or vibrators is or canbe then set in motion by further radiant energy or equivalent' and so on and the last of these vibrators or oscillators when it has attained the predetermined amplitude of vibration or oscillation will then close a local circuit or otherwise cause the desired operation or control such for example as the starting or stopping of machinery or causing an eizplosion (e. g. exploding a marine or other mine) and with a plurality of such oscillators or vibrators I may ad- 1 vantageously arrange that each said oscillaoscillators or vibrators are to be operated and if desired I may interpose or employ in the transmitting apparatus an Oscillator or vibrator corresponding to each aforesaid oscillator or vibrator employed in the receiving apparatus so that when any particular oscillator or vibrator in the transmitting apparatus'is in use it will send out a series of impulses which will affect and operate only the corresponding oscillator or vibra tor at the receiving apparatus. In this way I can cause a series of impulses to emanate from the transmitting apparatus which will cause a particular predetermined oscillator in the receiving apparatus to oscillate and this series of oscillations may be continued until the said oscillator in the receivin apparatus attains a given amplitude o oscillation whereupon the latter will render operative another of the oscillators (z'. e. a second of the oscillators) in the receiving apparatus having a different period of oscillation as aforesaid. I then cause a different series of impulses of radiant energy to emanate from the transmitter but suited to operate the second oscillator (in the receiving apparatus) so rendered effective as aforesaid and I may as aforesaid advantageously achieve this by using or interposing in the transmitting apparatus an oscillator corresponding in period of oscillation with this second oscillator in the receiving apparatus. This second series of. impulses will be continued until the said second oscillator in the receiving apparatus attains a given ampliture of oscillation whereupon the latterwill then render 0perative another of the oscillators (i. e. a third oscillator) in the receiving apparatus having a different period of oscillation as aforesaid and so on until the last of the series of oscillators .in the receiving apparatus has been caused to attain a given amplitude of oscillation whereupon it will then close a local circuit or otherwise cause or permit the desired operation or control as aforesaid.

one of the vibrators or oscillators (in a receiving apparatus) comprising a disk or wheel A mounted on a vertical axis B and having a spring C to control, or act on or in conjunction with, said wheel or disk A- as hereinafter fully explained; and Fig. 5is a horizontal cross sectional View on line 5-5, Fig. 4.

Referring now to Fig. 1. In this arrangement, I employ a body of mercury in a U- shaped tube H. I arrange a solenoid such as I around one limb of the. U-shaped tube H (at about the level of the mercury G in said tube) and inside said limb of said U-shaped tube I arrange a block of iron L which loosely fits inside this tube H and. normally. rests on the surface of the body of mercury G in said limb of said U-shaped tube H. This loose block L is attracted (2'. e. pulled downward) when the solenoid I is energized and thus causes the body of mercury G to oscillate or vibrate in the U- shaped tube H.

If now the solenoid I is energized by periodic currents (by means of radiant energy) corresponding to the periods of the oscillation or vibration of the body of mercury G the latter body after a series of oscil-' lations or vibrations of constantly increasing amplitude will reach the maximum or a predetermined amplitude and thereupon reaches the two separate contact points M and N in a circuit whereupon the coherer or its equivalent or another circuit is thereby put in circuit with another (2'. e. a second one) of these oscillators or vibrators such as illustrated in Fig. 1; and so on as herein after described with reference to Figs. 2 and 3.

Referring now to Figs. 2 and 3 in conjunction with Fig. 1; in Fig. 2 I have illustrated three oscillators or vibrators such as shown in Fig. 1 and which I have. marked (in Fig. 2) X, Y, Z, respectively.

The rotatable disk V (which is hereinafter more fully described) is in constant communication through the wire 1 with the primary battery 2-which latter in turn is in constant communication with the make and break contact 3.

The impulses of radiant energy emanating from the transmitter are received at 4 and cause the closing of the circuit through 3. A circuit is thus closed through the battery 2, wire 5, terminal 6, wire 7 and solenoid I (in the oscillator or vibrator X) thence through the wire 8,terminal 9, wire 10, back to 3. Upon the body of mercury G in the tube H (of this vibratorX) vibrating and reaching the contact points M and N thereby the circuit is closed through wire '7, terminal 6, wire 5, battery 2, wire 11, to

the electromagnet 12, thence through the wire 13 to the oscillator X through the terminal 13. 011 thus energizing the electromagnet '12, the armature 14 on the arm 15 of the bell crank 16, pivoted at 17, is drawnup toward the said electromagnet 12 and thereby the end of the other arm 18, of said bell crank 16, is moved (rocked) into contact with the disk V and thus completes a local circuit from the disk V, through the wire 1, battery 2, wire 11, electromagnet 12,

and attracts the arm 15, the latter there-' upon causes contacts to be closed at the point 20, from which latter the wire 21 leads to the electromagnet 22, wire 23, and terminal 23" of the oscillator Y.

The oscillator X having thus performed its function and put the next succeeding,

oscillator Y ready for operation the periodicity of the impulses of radiant energy (emanating from the transmitter) can then be changed so as to cause the oscillation of the body of mercury in the oscillator Y by means of the circuit through the contact 3, battery 2, wire 5, terminal 24, wire 25, solenoid I, wire 26, terminal 27 and wire 10; such oscillation of the body of mercury G in the oscillator Y eventually closing the circuit through the wire 25, terminal 24, wire 5, battery 2, wire 11, electromagnet 12, shunt 19, arm 15, contact 20, wire 21, through the electromagnet 22, wire 23 and terminal 23". On thus energizing the electromagnet 22, the armature 28 on the arm 29 (of the bell crank 30 pivoted at 31) is pulled up and this arm 29, through the shunt 32, makes connection, through the contact point 33 and wire 34, with the electromagnet 35, and thence through the wire 36 and terminal 36 to one of the contacts in the oscillator Z.

The arms 29 and 30 are insulated from each other by the pivot 31; At the same moment that the arm 29 is pulled up the other arm 37 of the said bell crank 30 is moved against the contact 38, from which the wire 39 leads to contact 40. A shunt wire 41 leads from the wire 23 to the arm 37.

When the body of mercury G recedes in the oscillator Y and breaksthe contact be tween the wires 23 and 25 in the oscillator Y, nevertheless the electromagnet 22 will continue to be energized through the. circuit comprising said electromagnet 22, shunt 41, arm 37, contact 38, wire 42, battery 2,

- wire 1, disk V, arms 18 and 15, contact 20,

wire 21, back to electromagnet 22, which is thus maintained energized-during a further part of the revolution of the disk V; while the oscillator Z is now put ready for operation.

The periodicity of the impulses of rad1ant energy (emanating from the transmitter) can now be changed so as to oscillate the body of mercury G in the oscillator Z by means of the circuit through the contact 3, battery 2, wire 5, terminal 43, wire 44,

solenoid I, wire 45,.terminal 46 and wire and such oscillation of the body of mercury G in the oscillator Z eventually closes the circuit through the wire 44, terminal 43, wire 5, battery 2, wire 11, electromagnet 12, shunt 19, arm 15, contact 20, wire 21, shunt 32, arm 29, contact 33, wire 34, electromagnot 35, wire 36 and terminal 36. On thus energizing the electromagnet 35, the armature 47 onthe arm 48 (of the bell crank 49 pivoted at 50) is pulled up and this arm 48 ,Onmeeting the contact 51 thereby closes a local circuit or otherwise causes the desired operation or control such for example as the giving of a signal or indication, letter or sign, or 'the starting or stopping of machinery, or exploding a mine, etc.

5 The disk V has a small partVi; of its circumference insulated from the remainder of'saidj disk which latter is rotated in any suitable mannere. g. either by a small electric motor or b clockwork and on completing each revo ution is brou ht to rest and 1s again released in any suita le manner as 'for example by means of the tooth or.projection V (see Fig. 3) on its periphery in a difierent plane to the arm 18 which tooth V will be caught and held by the catch U on the pivoted arm U which latter is drawn down b energizing the electromagnet U, Fig. 3 which is connected by a w1re'not shown-with the contact 3). by wireless 0 eration each time it is desired to permit t e disk V to make a? revolution.

- When the insulated part V. of the disk B- "40 ,passes under the contact on the arm 18, this brealm the circuit through said arm 18 and thereby, as will be 'readlly seen, breaks the circuit through all the 'electromagnets 12, 22, and 35 and thereby resets the whole receiving-apparatus to the initial position.

Referring now to Figs 4 and 5:These illustrate'another receiving apparatus 'for carrying out'my invention. In the receiving apparatus as illustrated in said Figs. 4

and 5, I have for example three disks or wheels such as A each -'mounted on a central axis B and controlled by a spring 0 so that each wheel Ais capable of oscillatf ing about its said axis B i. e. each independent of the other; and I. will describe the wheel A'illustrated in Figs. 4 and 5 as the first of the said set of three such wheels.

Each disk or wheel A is located in the field of one or more field magnets (for instance two oppositely disposed field magnets D for each disk or wheel respectively) which are so arranged that when they are energized the disk or wheel A is caused to rotate to a certain extent against the action of its spring C. The circuit whereby the said field magnets or polepins D are energized is normally broken by a coherer or other similar and suitable device which only becomes a conductor and allows in a known manner or otherwise allows a current to pass in the field magnet or polepin D as and when radiant energy from. the transmitter falls upon it. If impulses of radiant energy are caused to fall upon the coherer or equiva- A lent and those impulses are tuned to the period of oscillation ofthe spring controlled disk or -wheel A then the latter will be caused to oscillate with a constantly increasin amplitude. When a predetermined amplitude of vibration has been attained a connection is made between some moving part of the wheel A or spring C and a contact carried on a fixed part of the apparatus (for example as illustrated the distension of the spring C may be utilized to cause such connection by making contact with the contact point E of a circuit as indicated in dotted lines) whereupon the coherer or its equivalent is then put in circuit with another (i. e. a second one) of the oscillatory wheels or disks such as A in said receiving,

apparatus and (if desired) simultaneously the field magnets of the first vibratoror oscillator (i. e. first-named wheel or disk A) are energized so as to keep said first-named wheel A in the position in which the said connection between the distended spring C and contact E is maintained. The seconddisk or wheel (not shown) similar to 'A is now ready to receive impulses but it is necessary that these impi'ils'es should correspond .with the period of oscillation of said second wheel (which period is different from that of the first wheel'A) and on such impulses being received it will then be caused to oscillate increasingly until the predeterwill be brought to rest as described with reference to the first wheel A and the next (2'. e. the third) oscillator automatically put in circuit with the coherer, etc., as aforesaid. On the third oscillator (not shown) being put in circuit thereupon the circuit through mined amplitude is reached whereupon it the field magnets of the first oscillator will I any suitable device according to the purpose to which the apparatus is:- to be put.

Any suitable transmitting apparatus may be employed which will emanate impulses of radiant energy adapted to successively operate the difi'erent oscillators in the receiving apparatus.

- Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In an apparatus of the character described, the combination of a series of oscillators, normally-open primary circuits for actuating said oscillators, receiving apparatus for closing said primary circuits, secondary circuits adapted to be closed by said oscillators, devices for placing the secondary circuit of the oscillatornext in series in condition to be closed, a controller for retaining said devices in operative position after being actuated and for resetting the apparatus after the sequence of operations has been performed, and means associated with the device last in series for actuating the mechanism to which the apparatus is applied, substantially as described.

In an apparatus of the character de- .j scribed, the combination of a series of oscillators having diiferent vibration periods, normally-open primary circuits for actuating said oscillators, receivingapparatus 'for closing said oscillator circuits, secondary circuits adapted to be closed by said oscillators, devices for placing the. secondary circuit of the oscillator next in series in conditionto be closed when waves of the samevibration frequency are directed therethrough, a controller .for retaining said devices in operative position after being actuated and for resetting the apparatus after the sequence of operations has been performed,

and means associated with the device last in series for actuating the mechanism to which the apparatus is applied, substantially as described.

3. In an apparatus of the character described, the combination of a series of oscillators having difl'erent vibration periods,

normally-open primacy circuits for actuating said oscillators, receiving apparatus for closing said primary circuits, secondary circuits adapted to be closed only when said oscillators have attained a predetermined, amplitude of vibration, devices in said secondary circuits for placing the next-serially secondary circuit in condition to be closed when waves of a corresponding vibration frequency are impressed thereon, and means.

.associated with the device last in series for serially secondary circuit in condition to be closed when the associated oscillator has reached the aforesaid 'vibrati' n amplitude, substantially as described. i

5. In an apparatus of the character described, the combination of a plurality of oscillators having different vibration periods, normally-open primary circuits for actuating said oscillators, receiving appa ratus for closing said primary circuits, secondary c1rcu1ts, separated contacts In sa1d secondary circuits adapted to be placed in.

closed circuit when the oscillators attain a predetermined amplitude, electro-magnetic means also in said secondary circuits, and means associated with sa1d last-named means for placing thenext following secondary circuit in condition to be closed when its respective oscillator closes said separated contacts, substantially as described.

6. In an apparatus of the character described, the. combination of a series 'of oscillators having different vibration periods, normally-open primary circuits for actuating said oscillators, receiving apparatus for closing said primary circuits, normallyopen secondary circuits, separated contacts in said secondary circuits adapted to be placed in closed condition by said oscilla- 100 tors, electro-magnetic means also in said secondary circuits, means associated with said electro-magnetic means for placing the next-serially secondary circuit in condltion to be closed, a controller for maintaining 105 said electro-m'agnetic means 1n closed circult after, being energizedby said secondary circuits, and means assoclated wlth the-electro-magnetic means last in series for operat- MANRICO g the mechanism to which the apparatus isapplied, substantially as descrlbed; 

